A Contribution to the Understanding of Chromospheric Oscillations |
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| Authors: | F Baudin E Ibarra E H Avrett J-C Vial K Bocchialini A Costa P Lemaire M Rovira |
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| Institution: | (1) Institut d’Astrophysique Spatiale (IAS), Bat. 121, CNRS (UMR 8617) and Université Paris-Sud 11, 91405 Orsay, France;(2) Instituto de Astronomía y Física del Espacio, CONICET, 1428 Buenos Aires, Argentina;(3) Harvard-Smithsonian Center for Astrophysics, 60 Garden St., Cambridge, MA 02138, USA |
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| Abstract: | We present SUMER/SOHO UV measurements of chromospheric oscillations of intensity, velocity, and linewidth observed in C i, S i, O i, and C ii lines, which are formed in the altitude range from 1000 km to 2000 km above τ
500=1. Oscillations in lines originating at similar altitudes exhibit different behaviors which we discuss in terms of the formation
of the lines. |
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